The story
From the Old English personal name *Earna, a byname from earn (“eagle”), + -ing (“belonging to”) + tūn (“enclosure; settlement, town”).
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A village and civil parish in South Cambridgeshire district, Cambridgeshire, England (OS grid ref TL3250). Full definition →
From the Old English personal name *Earna, a byname from earn (“eagle”), + -ing (“belonging to”) + tūn (“enclosure; settlement, town”).
Etymology from Wiktionary, CC BY-SA 4.0.